Phengite-2M1 Ivaldi G, Ferraris G, Curetti N, Compagnoni R European Journal of Mineralogy 13 (2001) 1025-1034 Coexisting 3T and 2M_1 polytypes of phengite from Cima Pal (Val Savenca, western Alps): Chemical and polytypic zoning and structural characterisation Sample: 2M1Y Locality: Cima Pal, Val Savenca, western Alps _database_code_amcsd 0006914 5.2132 9.051 19.937 90 95.76 90 C2/c atom x y z occ Uiso KI 0 .09634 1/4 .98 .0237 NaI 0 .09634 1/4 .02 .0237 AlM2 .24717 .08247 .00002 .775 .00824 MgM2 .24717 .08247 .00002 .12 .00824 FeM2 .24717 .08247 .00002 .105 .00824 TiM2 .24717 .08247 .00002 .01 .00824 SiT1 .46378 .92929 .13547 .845 .0071 AlT1 .46378 .92929 .13547 .155 .0071 SiT2 .45205 .25865 .13551 .845 .0073 AlT2 .45205 .25865 .13551 .155 .0073 O1 .4416 .0933 .16885 .0153 O2 .2363 .8251 .16046 .0169 O3 .2362 .3579 .16927 .0153 O4 .4576 .9393 .05396 .0123 O5 .3928 .25151 .05397 .0124 O6 .4559 .5641 .05222 .0154 H .380 .635 .056 .039